iceberg
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Iceberg at the flow edge, Baffin Island, Northwest Territories, Canada.
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Iceberg, Tanquary Ford, Northwest Territories, Canada.
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Iceberg with arch.
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An iceberg in Baffin Bay. Icebergs are a danger to shipping, making the Bay unnavigable for around nine months of the year.
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Icebergs in the Antarctic assume many fantastic shapes. Near the shore these are mainly the result of accretion, as bergs jostle and fuse together. Further out, however, it is a matter of erosion, through thawing and melting, which may leave arches hanging between more compacted ice masses.
Floating mass of ice, about 80% of which is submerged, rising sometimes to 100 m/300 ft above sea level. Glaciers that reach the coast become extended into a broad foot; as this enters the sea, masses break off and drift towards temperate latitudes, becoming a danger to shipping.
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